US 11,988,791 B2
Sparse seismic data acquisition
Adrian McGrail, Houston, TX (US); and Paul Farmer, Houston, TX (US)
Assigned to TGS-NOPEC Geophysical Company, Houston, TX (US)
Filed by TGS-NOPEC Geophysical Company, Houston, TX (US)
Filed on Jun. 3, 2020, as Appl. No. 16/891,817.
Claims priority of provisional application 62/856,680, filed on Jun. 3, 2019.
Prior Publication US 2020/0379138 A1, Dec. 3, 2020
Int. Cl. G01V 1/38 (2006.01); G01V 1/09 (2006.01); G01V 1/20 (2006.01)
CPC G01V 1/3843 (2013.01) [G01V 1/09 (2013.01); G01V 1/201 (2013.01); G01V 1/3808 (2013.01); G01V 2210/1293 (2013.01); G01V 2210/1423 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method comprising:
towing a plurality of receivers and a first seismic source behind a first vessel, wherein the first vessel tows a plurality of streamers, wherein multiple ones of the plurality of receivers are disposed along each of the plurality of streamers, and wherein the plurality of streamers define a swath;
acquiring, using the plurality of receivers, first survey data resulting from activating the first seismic source, wherein the first survey data corresponds to a first coverage area of a subsurface below a bottom surface of a body of water;
towing a second seismic source behind a second vessel;
acquiring, using the plurality of receivers, second survey data resulting from activating the second seismic source, wherein the second survey data corresponds to a second coverage area of the subsurface, wherein no portion of the second coverage area is overlapped by the swath; and
controlling a separation distance between the first and second vessels to result in a desired gap between the first and second coverage areas.